Improvement in refrigerators



, v v 2 Sheets-She et 1. H. HUNGERFORD.

REFRIGERATOR.

Patented Feb.15,187e.

@HIV 7 7/ f/ n INVENTOR .& v M

%frz7 i ATTORNE NJETEHS. PNOTOJJTHOGRAPHER. WASHINGTON, c. I

2 Sheets-Sheet 2.v H. HUNGERFORD. REFRIGERATORH 'N.'173,639. Patented Feb. '15, 1876.A

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v WITNEssEs y INVENTOR,

' N PETERS, PHOTO-LITHOGRAPHER, WASHXNGTON. D. C.

HENRY HUNGERFORD, OF NORWALK, CONNECTICUT.

`'IMPtzovi-:ivnatlT iN REFR|GERATQRS-1 n Specification forming part of Letters Patent No. 173,639, dated February 15, 1876; application filed February 2, 1876.

To all whomv it may concern Be it known that I, HENRY HUNGERFORD, of' Norwa1k,in the county of Fairfield and State of Connecticut, haveinvented anew and valuable Improvement v in Iiefrigerating Apparatus and. I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a longitudinal vertical section of my refrigerating apparatus, and Fig. 2 is a perspective View ofthe same, with section broken away. Fig. 3 is a plan view, and Fig. 4 a transverse vertical sectional l.view of the same, on the line z z of Fig. l.

This invention has relation to means for cooling apartments,whether stationary or portable, and I design my invention especially for cooling railroad-cars, meat-houses, the holds of ships, and other rooms.

The nature of my invention and improvelment consists in a novel arrangement and combination of an ice-receptacle, air-conduits, and an air-forcing engine, whereby air is drawn from tbe apartment being cooled, then forced up through the, ice-receptacle, and thence forced, in a cool state, into the said apart-ment againat or near the highest part thereof.

Prior to my invention air-engines have been employed in connection with refrigerators for the purpose of inducing currents of air down through a chambercontaining ice, and thence drawing the air upward through the apartment to be cooled. I have reversed this order of things, by forcing cold air directly from the ice-receptacle down into the cooling-apartment, and taking the vitiated air therefrom and forcing it back again through theice, thus purifying and drying the air at each rotation, as will be understood from the following description, which shows my means for producing the result stated.

In the annexed drawings A designates the cooling-room of a meat-house, which I prefer to construct with double walls, forminganonconducting air space, a, which, if desired, may

be `tilled with some material that is a poor conductor of heat. B designates an ice-receptacle which, in the drawings, is represented 4 as arranged at one end of the cooling-room A, but which may be arranged at any other convenient place. The bottom of this ice-recep tacle is grated as shown at b, and its upper end communicates with the room A by means otra passage, c, provided with a valve, d, and a deiiecting plate, e. Below the passage c, one or more openings, f, are made through the division C, which are provided with clos-v ing slides, g. When slides g are fully raised they will move up the valve d, and shut the passage c, thus allowing the cold air to pass from the receptacle B directly into the room A at a point below the said passage c. D designates a receptacle' in which is arranged an air-engine, E, of any suitable construction,

and driven by any. convenient motive power.

The exhaust pipe h of this engine enters a narrow passage, i, vwhich communicates with an upwardly daring-space, j, the upper end ot' which is equal in width to the width of the room A, and communicates by means ofa passage, k, with this room. The blast or discharge pipe 71/ enters a flaring space, l, which communicates with the ice-chamber B, beneath the grate b, as shown clearly in Fig. 1.

When the air-engine is in motion air will be drawn from the room A, as indicated by the descending arrows' in Fig. l, and forced up through the ice chamber and discharged into said room again, either through the passagec or through the opening f. When the air from the ice-chamber enters the room A through the passage c, it will be directed downward by the deflector c, so as to circulate generally through the room A.

What I claim as new, and desire to secure by Letters Patent, is

l. In combination with the air-passage l, leading undver the grid, the ice-chamber B, and

cooling-room A, I claim the air-deector e,

substantially as and .for the purpose specified.

2. The air-passages la j i l, air-engine E,` Y

ice-chamber B, and air-passage'c, combined with a cooling-room, A, substantially as described.

3. Ihe passage j' through division c, provided with slide g, in combination with vthe for the purpose Vsetl its division Wall C, and cooling chamber A,

substantially as described and for the purpose set forth. i

vIn testimony that I claim the above l have hereunto subscribed my name in the presence of two witnesses.-

HENRY 'HUNGERFORD Witnesses:

'JOHN F. ACKIJR, Jr.,

EUGENE W. JOHNSON. 

